摆设 (bǎi she): орнамент

Mom placed a blue-and-white porcelain vase on the coffee table in the living room as an ornament, making the room look more elegant.

Those exquisite little ceramic animals on the bookshelf are just ornaments; I've never actually looked at them carefully.

Grandpa hung the landscape painting his friend gave him on the dining room wall as a decoration; everyone in the family likes it very much.

That crystal swan in the glass cabinet is just an ornament, but it reminds me of my trip to Venice.

To add a festive atmosphere, I put some colorful candles on the windowsill as decorations; when lit at night, they look especially cozy.